Patents by Inventor Hun Cha

Hun Cha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8188114
    Abstract: The present invention provides novel pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: May 29, 2012
    Assignee: Yuhan Corporation
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Dong-Hoon Kim, Chan-Sun Park, Seok-Hee Han, Myung-Hun Cha, Heui II Kang, Sun-Young Jang
  • Publication number: 20120092440
    Abstract: A video communication apparatus in which eye contact can be made with an opposite party of a conversation is provided. The video communication apparatus includes: a monitor unit for video communication; and a camera unit for capturing an image of a user, wherein the monitor unit repeats mode switching between a video mode and a transparent mode according to a specific period, and wherein the camera unit is located behind the monitor unit and captures the image of the user by using a screen of the monitor unit. Accordingly, eye contact can be made with the opposite party when users who participate in video communication talk to each other while seeing communication images.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 19, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju CHO, Ji Hun CHA, Jin Woong KIM
  • Publication number: 20120023161
    Abstract: Disclosed herein are a system and a method for providing multimedia services capable of providing various types of multimedia contents and information sensed at multi-points to users at a high rate and in real time at the time of providing the multimedia contents and sense scene representation and sensory effects for multimedia contents corresponding to multimedia services through the multi-points according to service requests of the multimedia services that users want to receive, encode and transmit the sensed information for scene representation and sensory effects with binary representation according to the sensing, transmit device command data for the sensed scene representation and sensory effects, drive and control user devices according the device command data to provide the scene representation and the sensory effects for the multimedia contents to the users.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Applicants: SK Telecom Co., Ltd., Electronics and Telecommunications Research Institute
    Inventors: Seong-Yong LIM, In-Jae LEE, Ji-Hun CHA, Young-Kwon LIM, Min-Sik PARK, Han-Kyu LEE, Jin-Woong KIM, Joong-Yun LEE
  • Publication number: 20110145697
    Abstract: A method for performing presentation with reference to structured information existing in an internal or external is defined. A scene presentation device may present a scene with reference to the structured information based on the defined method.
    Type: Application
    Filed: July 15, 2009
    Publication date: June 16, 2011
    Applicants: NET & TV INC., Electronics and Telecommunications Research Institute
    Inventors: Ji Hun Cha, In Jae Lee, Young Kwon Lim, Han Kyu Lee, Jin Woo Hong
  • Patent number: 7782233
    Abstract: Provided are a method and an apparatus for selectively encoding/decoding point sequences to maximize bit efficiency of a lightweight application scene representation (LASeR) binary stream. The point sequence encoding method includes the steps of: for each point sequence, (a) selecting one of exponential-Golomb (EG) encoding and fixed length (FL) encoding schemes; (b) when the FL encoding scheme is selected, encoding the point sequence using the FL encoding scheme to generate a binary stream; and (c) when the EG encoding scheme is selected, encoding the point sequence using the EG encoding scheme to generate a binary stream. The binary stream includes a flag indicating which encoding scheme is selected and a parameter k, with which the EG encoding can be most effectively performed, when the EG encoding scheme is selected. According to the encoding method, LASeR point sequences can be efficiently encoded and, during a decoding process, a large overhead is not incurred to a decoder (terminal).
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: August 24, 2010
    Assignees: Electronics and Telecommunications Research Institute, Net & TV, Inc.
    Inventors: Ye Sun Joung, Ji Hun Cha, Won Sik Cheong, Kyu Heon Kim, Young Kwon Lim
  • Publication number: 20100069430
    Abstract: The present invention provides novel pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Application
    Filed: November 6, 2009
    Publication date: March 18, 2010
    Applicant: Yuhan Corporation
    Inventors: Jae-Gyu KIM, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Dong-Hoon Kim, Chan-Sun Park, Seok-Hee Han, Myung-Hun Cha, Heui-II Kang, Sun-Young Jang
  • Patent number: 7662832
    Abstract: The present invention provides novel pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Grant
    Filed: September 3, 2005
    Date of Patent: February 16, 2010
    Assignee: Yuhan Corporation
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Dong-Hoon Kim, Chan-Sun Park, Seok-Hee Han, Myung-Hun Cha, Heui-Il Kang, Sun-Young Jang
  • Publication number: 20100002763
    Abstract: Provided are an apparatus and method for describing and processing digital items using a scene representation language. The apparatus includes a digital item method engine (DIME) unit for executing components based on component information included in the digital item; and a scene representation unit for expressing scenes of a plural number of media data included in the digital item in a form of defining spatio-temporal relations and allowing the media data to interact with each other. The digital item includes scene representation having representation information of the scene, and calling information for the digital item express unit to execute the scene representation unit in order to represent the scene based on the scene representation information at the scene representation unit.
    Type: Application
    Filed: September 21, 2007
    Publication date: January 7, 2010
    Inventors: Ye-Sun Joung, Jung-Won Kang, Won-Sik Cheong, Ji-Hun Cha, Kyung-Ae Moon, Jin-Woo Hong, Young-Kwon Lim
  • Patent number: 7642269
    Abstract: The present invention provides novel pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Grant
    Filed: September 3, 2005
    Date of Patent: January 5, 2010
    Assignee: Yuhan Corporation
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Choong-Hyun Lee, Myung-Hun Cha, Heui-Il Kang, Sun-Young Jang
  • Patent number: 7508482
    Abstract: A cassette and a method for fabricating a liquid crystal display device. The cassette comprises a frame having a box shape, at least one side plate movably positioned at an inner side surface of the frame and having a plurality of slots, a model converting device disposed at a certain region of upper and lower surfaces of the frame, and a converting lever positioned in the model converting device for moving the side plate according to a size of a glass to be received.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Jang Heon Son, Sang Hun Cha
  • Patent number: 7450508
    Abstract: A media server coupled to a service network by means of a media gateway provides network-adaptive media streams through hybrid monitoring for the digital home service. Clients coupled to the service network measures a network state of the service network and system states of the clients through the hybrid monitoring. A monitoring server includes a domain manager and receives metric information fed back from the clients, performs comparison and analysis with respect to the received measurement information, determines causes of quality degradation of the digital home service, and delivers indication information according to the causes to the media server and the media gateway. The domain manager also determines a problem of the media streams according to a predetermined policy and an analysis result of the condition-analyzing unit and for creating the indication information in order to solve the problem.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Hun Cha, Chang-Sup Shim, Jun-Ho Koh
  • Patent number: 7450608
    Abstract: A subscriber distribution network includes a backplane board that has a network switch and a plurality of subscriber line units, the network data, the plurality of subscriber line units being provided between the network switch and subscriber set-tops, providing data from the network switch to a corresponding subscriber set-top, and providing data transmitted from the subscriber set-tops to the network switch. In the subscriber distribution network apparatus, the network switch can be connected in simple fashion to the subscriber line units by connectors.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: November 11, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Seok Choi, Do-Hun Cha, Yun-Je Oh, Jun-Ho Koh
  • Publication number: 20070219230
    Abstract: The present invention provides novel pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[2,3-c]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Application
    Filed: September 3, 2005
    Publication date: September 20, 2007
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Dong-Hoon Kim, Chan-Sun Park, Seok-Hee Han, Myung-Hun Cha, Heui-Il Kang
  • Publication number: 20070213358
    Abstract: The present invention provides novel pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof, processes for the preparation thereof, and compositions comprising the same. The pyrrolo[3,2-b]pyridine derivatives or pharmaceutically acceptable salts thereof of the present invention have excellent proton pump inhibition effects and possess the ability to attain a reversible proton pump inhibitory effect.
    Type: Application
    Filed: September 3, 2005
    Publication date: September 13, 2007
    Applicant: YUHAN CORPORATION
    Inventors: Jae-Gyu Kim, Byung-Nak Ahn, Hyouk-Woo Lee, Suk-Won Yoon, Young-Ae Yoon, Choong-Hyun Lee, Myung-Hun Cha, Heui-Il Kang, Sun-Young Jang
  • Publication number: 20070008993
    Abstract: Disclosed is a time synchronization method for selecting a predetermined timing master and according Times of Day of a plurality of nodes with a Time of Day of the predetermined timing master in a Residential Ethernet system, which includes the nodes, the method comprising the steps of receiving, by a predetermined node among the nodes, a time value of the predetermined timing master, and setting a time value of the predetermined node as the received time value, and changing, by the predetermined node, the set time value by taking into consideration a data transmission delay time value between the predetermined node and the predetermined timing master.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Inventors: Do-Hun Cha, Jae-Hun Cho, Jun-Ho Koh, Sang-Ho Kim
  • Publication number: 20060168133
    Abstract: A method for transmitting packetized multimedia content over a network is disclosed. The method comprises, receiving packetized multimedia content to be transmitted over the network; classifying respective frame of the packetized multimedia content according to an assigned priority by analyzing a frame header of each frame of the packet; separately storing the classified frames in accordance with said classification; and differentially marking the classified frames according to quality-of-service (QoS).
    Type: Application
    Filed: November 10, 2005
    Publication date: July 27, 2006
    Inventors: Jeong-Rok Park, Kwan-Lae Kim, Jeong-Seok Choi, Chang-Sup Shim, Do-Hun Cha, Jun-Ho Koh
  • Publication number: 20060146703
    Abstract: A media server coupled to a service network by means of a media gateway provides network-adaptive media streams through hybrid monitoring for the digital home service. Clients coupled to the service network measures a network state of the service network and system states of the clients through the hybrid monitoring. A monitoring server includes a domain manager and receives metric information fed back from the clients, performs comparison and analysis with respect to the received measurement information, determines causes of quality degradation of the digital home service, and delivers indication information according to the causes to the media server and the media gateway. The domain manager also determines a problem of the media streams according to a predetermined policy and an analysis result of the condition-analyzing unit and for createing the indication information in order to solve the problem.
    Type: Application
    Filed: April 6, 2005
    Publication date: July 6, 2006
    Inventors: Do-Hun Cha, Chang-Sup Shim, Jun-Ho Koh
  • Publication number: 20050078960
    Abstract: A subscriber distribution network includes a backplane board that has a network switch and a plurality of subscriber line units, the network data, the plurality of subscriber line units being provided between the network switch and subscriber set-tops, providing data from the network switch to a corresponding subscriber set-top, and providing data transmitted from the subscriber set-tops to the network switch. In the subscriber distribution network apparatus, the network switch can be connected in simple fashion to the subscriber line units by connectors.
    Type: Application
    Filed: March 5, 2004
    Publication date: April 14, 2005
    Inventors: Jeong-Seok Choi, Do-Hun Cha, Yun-Je Oh, Jun-Ho Koh
  • Patent number: 6585907
    Abstract: An inductive-coupled plasma apparatus employs a shield to reduce sputter contamination. A method for manufacturing the shield is included. An apparatus for generating a high-density plasma includes a process chamber having a dielectric window located along a plane, a coil located outside the process chamber proximate to the dielectric window and substantially parallel to the plane, and a shield located between the coil and the dielectric window. The shield has multiple openings, wherein the multiple openings of the shield are disposed at locations corresponding to areas between the turns of the coil.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Hee Shin, Jin-Man Kim, Baik-Soon Choi, Hun Cha
  • Patent number: 6443826
    Abstract: A retainer ring of a polishing head of a CMP apparatus facilitates the removal of contaminants, such as slurry debris, which have found their way into the polishing head. The retainer ring includes an annular ring body, and a plurality of contaminant outlets extending from the inner peripheral surface of the ring body to the outer peripheral surface of the ring body. Inner openings defined at the inner peripheral surface of the ring body and outer openings defined at the outer peripheral surface of the ring body by the contaminant outlets are horizontally elongated slots. Also, each of the contaminant outlets consists of a plurality of inner holes and an outer hole which is joined to the plurality of inner holes. The contaminant outlets occupy at least 30% of the radially innermost peripheral surface along a line extending circumferentially along the surface.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: September 3, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Sik Yang, Hun Cha, Kyung-dae Kim, Min-gyu Kim